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Go Back   GSM-Forum > Other Gsm/Mobile Related Forums > Sim Cloning and Scaning

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Old 02-19-2003, 01:25   #1 (permalink)
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KI & IMSI , how to tell if A38 OR not?

guys, using sim_scan, i get Incorrect Parameter along the Dex_gsm.log file, but i am not sure if this sim i am using is a38 or not, though, sim_scan should not read it if it was not? correct me here please.... NOW, I ran sim_scan for over 3 hours with F2, it stopped with an error when it could not find the first 2 pairs of KI,,, & now it wont run again, the sim still works though.

Anyone had this PARTICULAR problem? please reply here

from the Dex_gsm.log file
CLA:INS A0:88 => GSM: Run GSM A38 Algorithm
P1:P2:P3 00 00 10
6700 Incorrect parameter P3
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Old 02-19-2003, 12:21   #2 (permalink)
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Hi fofodaman,

What SIM card have you got?
Interesting problem.....

All card I know using the same interface/protocol to A3A8:

For example...

Command: A0 88 00 00 10 88
Data : 9D B9 6A B7 12 0E 6D 09 E3 A9 A4 B1 E0 AF 71 D7
Answer : 9F0C (12 bytes SRes + Kc)

... but you card need more than 16 bytes (10h). The P3 are the size of the input for the A3/A8. Always is 16 (The Rand number of the BTS) But your card donīt work with this...

Are a England Card?

Best Regards,
Sir Graham.
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Old 02-19-2003, 16:04   #3 (permalink)
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SirGraham, Please check your email.
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